Alternatives to MicroSIP for all platforms with any license

Signal

TextSecure and RedPhone have been merged to create Signal! Using Signal, you can communicate instantly while avoiding SMS fees, create groups so that you can chat in...

Free Open Source Mac Windows Linux Android iPhone ... Android Tablet iPad Chrome
End-to-end encryption Encrypted chat Security focused Texting ... Encrypted calls Encrypted Connection Self destructing messages Video calling Voice Call Built-in File transfer Color coding Encrypted VoIP calls Forward Secrecy Group chat Mobile friendly Works Offline Protected by Password Based on phone number Privacy focused Privacy protection Private messaging Send files Voice messages Add a feature

359 Like
Wire

Wire is a secure and private messenger for phones, tablets and desktop. Crystal clear voice and video calls, private group chats, file sharing, audio and video messages...

Free Personal $ $ $ Open Source Mac Windows Linux Web Android ... iPhone Android Tablet iPad
End-to-end encryption Security focused Encrypted calls Encrypted chat ... Group chat Integrated File Sharing Photo Sharing Privacy focused Privacy Protected Share your screen Video calling Voice Call WebRTC Add a feature

165 Like
Jitsi

Jitsi (previously SIP Communicator) is an audio/video and chat communicator with full end-to-end encryption that supports protocols such as SIP, XMPP/Jabber, ICQ/AIM...

Free Open Source Mac OS X Windows Linux Web Android ... BSD
End-to-end encryption Group chat iPhone/iPod sync Multiple protocols ... Multiple Account support OTR Video calling WebRTC Add a feature

273 Like
Linphone

Linphone is an internet phone or Voice Over IP phone (VoIP). With Linphone you can communicate freely with people over the internet, with voice, video, and text instant...

Free Open Source Mac OS X Windows Linux Web Windows Mobile ... Android iPhone Android Tablet Windows Phone iPad Xfce
Encrypted VoIP calls Video calling Add a feature

102 Like
Ekiga

Ekiga (formely known as GnomeMeeting) is an open source VoIP and video conferencing application for GNOME. Ekiga uses both the H.323 and SIP protocols. It supports many...

Free Open Source Windows Linux PortableApps.com
No login Portable Video calling Add a feature

65 Like
YakYak

What does it do: * Send/receive chat messages * Create/change conversations (rename, add people) * Leave/delete conversation * Notifications * ...

Free Open Source Mac Windows Linux Hangouts
Portable Add a feature

17 Like
Zoiper

Zoiper IAX & SIP multilanguage and multiplatform (Windows, Linux and Mac OS X) softphone is a VoIP soft client, meant to work with any IP-based communications...

Free Personal $ $ $ Mac OS X Windows Linux Web Android ... iPhone Windows Phone
No features added Add a feature

22 Like
CSipSimple

csipsimple will allow native sip for android device. It relies on the pjsip SIP stack and use the pjsip-jni project. The use of this native library will ensure a...

Free Open Source Android
No features added Add a feature

34 Like
Blink

Blink, a state of the art, easy to use SIP client. You can use it with any SIP provider or its own fully-featured SIP service. Voice over IP * HD Audio...

Freemium Mac Windows Linux
End-to-end encryption Sync with iCloud Integrated File Sharing Share your screen ... Video calling Add a feature

18 Like
X-Lite

Combining voice calls, video calls and Instant Messaging in a simple interface, CounterPath's X-Lite helps you seamlessly transition from a traditional phone...

Commercial Mac OS X Windows
Video calling Voice Call Add a feature

19 Like
Telephone

Telephone is a VoIP program which allows you to make phone calls over the internet. It can be used to call regular phones via any appropriate SIP provider, including...

Free Open Source Mac OS X
No features added Add a feature

16 Like
tSIP

Lightweight portable SIP softphone with BLF and customizable keypad built with libre/librem/baresip BSD-licensed stack.

Free Open Source Windows
Call recording Click to call Multicast RTP streaming Plugin API ... Portable Programmable keys Scripting Add a feature

3 Like
PhonerLite

PhonerLite enables your PC to use it for internet telephony (VoIP , Voice over IP, SIP). You need an internet connection and an account from a provider supporting the...

Free Windows
No features added Add a feature

2 Like
3CX Phone System

3CXPhone is a free VoIP phone available for Windows, iPhone or any Android based smart phone such as Google Nexus, Sony Xperia, Motorola Droid or Samsung Galaxy. Connect...

Freemium Windows Android iPhone
No features added Add a feature

8 Like
Phoner

Softphone for VoIP, CAPI und TAPI. This application enables voice connections to landline, cellular network and VoIP. Phoner can be used as softphone on stationary and...

Free Windows
No features added Add a feature

13 Like